This fixes a Windows build failure. How did this build on Linux?

logging_ok:
  Logging to logging@openlogging.org accepted
mysql_priv.h, my_time.h:
  Moved declaration of days_in_month array from mysql_priv.h to my_time.h to correct Windows build issues

BitKeeper/etc/logging_ok

@@ -154,6 +154,7 @@ ram@gw.udmsearch.izhnet.ru
 ram@mysql.r18.ru
 ram@ram.(none)
 ranger@regul.home.lan
+rburnett@build.mysql.com
 root@home.(none)
 root@x3.internalnet
 salle@banica.(none)

include/my_time.h

@@ -27,6 +27,7 @@
 C_MODE_START
 
 extern ulonglong log_10_int[20];
+extern uchar days_in_month[];
 
 /*
   Portable time_t replacement.

sql/mysql_priv.h

@@ -827,7 +827,6 @@ extern Gt_creator gt_creator;
 extern Lt_creator lt_creator;
 extern Ge_creator ge_creator;
 extern Le_creator le_creator;
-extern uchar days_in_month[];
 extern char language[LIBLEN],reg_ext[FN_EXTLEN];
 extern char glob_hostname[FN_REFLEN], mysql_home[FN_REFLEN];
 extern char pidfile_name[FN_REFLEN], system_time_zone[30], *opt_init_file;